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G. W. A. I-I ANKEY. THRASHIN G MACHINE.

No. 537,922. Patented Apr. 2-3, 1895.

618296 w 42 5; WWW

Unrrno TATES ATENT Genres.

GEORGE WV. A. HANKEY, OF'YORK, PENNSYLVANIA.

THRASHlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 537,922, dated April 28, 1895.

Application filed October 4, 1894- serial No. 524,903. (No model.)

To 00% whom it may concern.-

Be it known that I, GEORGE W. A. IIANKEY, a citizen of the United States, residing atYork, 1n the county of York and State of Pennsyl- Vania, have invented certain new and useful Improvements in 'lhrashingll/Iachines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improvement in thrashing machines and it consists in the employment of improved details and general features and further in the construction and arrangement of the parts hereinafter described and definitely pointed out in the claims.

The aim and purpose of the invention are the provision of improved means which render and produce an accurate, positive and simplified Working of the machine. These obects are attained by the construction illustrated in the accompanying drawings wherein like letters of reference in the different figures designate corresponding parts, and in which- Figure 1 represents a side elevation of the machine. Fig. 2 is a longitudinal vertical section. Fig. 3 is a detail elevation of aforward hanger. Fig. at is a transverse vertical section through the same and sections of the shaker and grain bottom. Fig. 5 is a detail longitudinal section of thegrain spout. Fig. 6 is a plan view thereof. Fig. 7 is a detail transverse vertical section of the adjustable hanger for the rear end of the shaker showing a section of the shaker attached. Fig. 8 is a vertical section of the coupling between the elevator box and the intermediate spout leading therefrom. Fig. 9 is adetail vertical section through the elevator adjuster. Fig. 10 is a section taken through the fan box looking toward the slide and showing the means whereby the adjustments are made. Fig. 11 is a detail plan of the sieve corner brace; and Fig. 12 is an' elevation thereof showing the adjacent parts.

In the drawings, A designates the frame, B; the weather boards; 0, the forward cylinder, and D the rear cylinder of any desired form.

The machineis mounted on suitable wheels and is provided with the usual straw carrier,

platform and feed table.

E designates the grain bottom which extends on the same plane throughout from a point below the forward cylinder to the extreme rear of the machine. tion of this bottom is imperforated asis usual while the rear portionis perforated or formed of foraminous material e. The side bars E of the bottom E at the rear have fixedly secured or formed thereon the side walls F of the shoe which latter has the usual sieves f f thereon with the tailings spout F from which the elevator G leads in the usual manner. The lower forward edge and end of the The forward porsides F are extended downward and are conthe inwardly extending flanges h at its upper edge. The inner edges of the flanges are parallel and spaced apart a distance corresponding to the distance between the cross bars. The flanges are reinforced by parallel metal bars h which extend below the same and slightly beyond the delivering end of the spout and supporting on their projecting ends the cap plate 72. The spout H is secured to the cross bars 9 by removable bolts 72. passing through the flanges and bars so that the same may be readily removed.

I have found that by the employment ofa semi-circular spout the vibrations of the shoe will cause the grain to strike the practically ally prevent the grain from escaping over the edges of the spout are permitted to be used in connection with the elongated semi-elliptical form and yet maintain the proper throat or entering space. By forming the flanges with parallel edges and arranging the cross bars g parallel, the spout may be adjusted to either have its discharge end extending into the elevator trunk, or reversed to discharge posed of a lever 70 pivoted at its lower end to the lower end of the trunk and carrying the stub shaft is projecting through a curved slot in the trunk on which the belt pulley is placed.

K represents a segmental rack on the trunk with which teeth on the lever engage, a belt passing through the lever into a curved slot 7: in the rack in which the same is slidingly secured. To add additional security to the each side.

adjustment I extend a curved arm K from the side of the lever and form an elongated slot therein through which a suitable clamping bolt it passes. By this means the adjustment of the lever 70 will draw the pulley down or forward as the case may be and the same can be firmly locked in place. The shaft 7.6 has an oil aperture or channel 70 formed therein terminating at the outside of' the lever so that the pulley bearing may be quickly lubricated. A somewhat similar construction may be employed at the top of the trunk. The grain bottom at its forward end is supported by rock arms or hangers L, one on The arms consist of a curved metal bar Z having a bend therein at a point below the center and are pivotally supported at or near their centers by journals or pins Z bushings Z on their inner faces which project inner ends.

into apertures in the bars E. These bushings have longitudinal bores in which the pivot pins L 'are placed the same bei-ng'formed with reduced outer portions Z and heads Z on their At the end of. the reduced portions are shoulders flush with the faces of the plates, so that the danger of undue binding by overtightening of the pins is avoided, the tightening means being suitable nuts on the pins which engage the outer faces of the hangers as shown. By this means a strong rigid connection is formed which will readily withstand the sudden movements of the bottom.

Oblong oil apertures Z are formed in the hangers in close proximity-or in line with the top of the plates L and theseplates have the vertical oil channels Z formed therein, so that oil can be readily introduced into the bushings.

bars of the shaker frame.

On the upper ends of the rock arms or hangers, pivotally secured in a manner similar to the plates L are the shaker plates L which have the bottom flanges l and the end flanges Z on and against which the side bars M of the shakers M rest. The shakers M are mounted independently of the bottom and vibrate in an opposite direction. They extend from a point near the forward cylinder to near the rearcylinder and are composed of the imper forated section m and the two stepped inclined sections m which are formed of single piece boards having the steps or grooves out directly out from their upper faces and at the base of the grooves suitable perforations m are formed through which the grain passes.

The rear end of the shaker frame is mounted on hangers 0 each of which as shown in Fig. 7, is formed of the vertical section 0 having the wrist pins 0 at its ends which are journaled in the boxes 0 on the frame of the machine above the shakers. The lower ends of the hangers are curved inward under the supporting barof the frame and are formed with a rectangular opening in which adjustable boxes 0 are placed, adjusted to take up the wear by the set screws 0 passing through the end bar or wall of the opening. The connec- .tion between the hangers and shaker frame is made by means of the journals P journaled and held in the boxes, theirinner ends being reduced in size and passed through wear plates Q Q on the outer and inner faces of the side The plate Q has a bottom flange projecting below the frame and :both plates are secured to the frame by suitable bolts.

The rear ends of the grain bottom and shoe are carried by the rock arms Rot a construccated midway the length of the elevator G for conducting the better material onto the grain bottom has heretofore been a source of great annoyance inasmuch as the vibrations of the machine usually loosen the connection betweenthe spout (generally metallic) and the elevator trunk. To overcome this defect I pass a bolt T through the trunk securingit in place by a suitable lock nut ta'nd around this nut I place the metal edge of the spout T. Over the nut 15 I place a jam nut 15 having a flanged inner edge which rests on or against the metal edge of the spout. I then adjust a winged nut T on the outer end of the bolt and turn it down until a close union is formed thereby locking the nut 75 in place and securing the metal edge firmly against the trunk.

U designates the fan casing located at the base of the machine as is usual. At the end of the casing is the slide or door a which is pivoted at one end as attt to the casing. Below the opening in the casing is pivoted the adjusting and locking brace W which is curved and has an elongated slot therein.

W designates a bolt having its head slidingly secured in the slot and passing through the slide or door u and carries a butterfly nut on its outer end. When it is desired to close or open the door the nut is loosened and the bolt moved to the proper point in the slot of the brace and there clamped. The slot in the brace is of alength sufficient to allow the door to move down to a point which will openpractically the en tire end of the drum. While the door is thus lowered the bolt in the same comes in contact with the lower end wall of the slot and is prevented from moving farther downward, the combined length of the brace from the slot to its pivot and the slide from the bolt to its pivot being greater than the distance between the brace and slide pivot, thereby limiting the downward movement of the slide. This construction avoids forming long slots in the slide which greatly weakens the same.

To securely connect the respective sieves to the sides of the shoe and to strengthen the joints of the sieve frames, I employ plates as shown in Figs. 11 and 12 which consist of the flat base sections w having the flanges w on their upper faces at right angles to each other adapted to fit the inner sides of the frames. The plates are secured to the frame by suitable screws and have the eyes 10 on their under sides through which the securing bolts pass.

By the above described construction it will be seen that the entire vibrating portions of the machine are actuated by the pitman L through the hangers L, thus avoiding complicated arrangements of levers andbelts. The manner of working the several parts will be readily understood by the description.

It is to be understood that minor changes can be made in the construction and arrangement of the parts and substituted for those herein shown and described Without in the least departing from the nature and principle of my invention.

Having thus described my invention, what is claimed as new, and desired to be secured by Letters Patent, is I 1. In a thrashing machine, the combination with a vibrating member of the machine, of a delivery spout thereon formed with a base of semi-elliptical curvature and inwardly extending securing flanges on the upper edges of the spout having parallel edges and means for securing the spout to the machine, substantially as described.

2. In a thrashing machine, the combination with a vibratory shoe having a discharge opening therein, parallel cross bars at the opening, a semielliptical grain spout havingparallel inwardly extending flanges, reinforcing strips below the flanges, and means for securing the spout to the cross bars, substantially as described.

8. In a thrashing machine, the combination with the separating mechanism, of a vibratory grain spout formed tapering and having inwardly extending flanges at its upper edge, and means for securing the spout to the machine, substantially as described.

4. In a thrashing machine, the combination with the shakers and grain bottom, of the hangers or rock arms having the wrist pins at their lower ends, an intermediate supporting pivot, plates on the side bars of the bottom having bushings Z projecting into the bars, pivot pins passing through the bushings and arms, means for securing the pins on the arms, plates having bushings thereon secured on the shaker frame, and pivot pins passing through the bushings and arms, substantially as described.

5. In athrashing machine, the combination with the grain bottom and shakers, of the rock arms L having the wrist pins Z thereon and the oil openings 2", the plates L having the channels Z therein and the bushings Z, and the shouldered pivot pins passing through the bushings and arms,substantially as described.

6. In a thrashing machine, the combination with a vibratory frame, of a rock arm therefor, a plate on the frame having a bottom and end flange and a bushing passing into the frame, and a pivot pin passing through the bushing, plate and rock arm, substantially as described.

7. In a thrashing machine,a laterally movable tapering semi-elliptical grain spout having inwardly extending flanges at its upper edge, substantially as described.

8; In a thrashing machine, the combination with a shoe having parallel cross bars, of a semi-elliptical spout having extending reinforced flanges secured to the cross bars, substantially as described.

9. In a thrashing machine, the combination with the shakers and grain bottom, of the hangers or rock arms comprising the-bars Z having wrist pins at their lower ends and intermediate pivots, plates on the shakers having bearing therein, pivot pins passing through the bearings and upper ends of the arms, plates on the bottom having bearings therein, pins passing through the bearings and arms at a point belowthe pivots of the arms, and pitmen connected to the wrist pins, substantially as described.

10. The combination with the rear hangers for the shakers, of plates on the outer faces of the shaker frames having flanges at their lower edges extending below the frame plates on the inner faces of the frame,bolts passing through both plates, and journals passing through the plates and frame and journaled in the hangers, substantially as described.

11. In a thrashing machine, the combination with an elevator trunk and its elevator, of a pulley over which the elevator travels, a shaft on which the pulley is mounted, and an clamping bolt between the lever and toothed,

plate, substantially as described.

12. In a thrashing machine, the combination with a fan casing, of a slide therefor, pivoted at one end to the casing, a curved brace pivoted at one end to the casing and having an elongated slot therein,and a bolt in the slide at a point between the pivots of the slide and brace and having its end adj ustably secured in the slot, the combined length of the brace from its slot to the pivot and the slide from the bolt to its pivot being greater than the distance between the brace and slide pivots,

\ substantially as described.

its edges, bolts passing through the wall of the. trunk, nuts on the bolts seated in'the apertures in'the spout, and a flanged nut span tion with a-shoeand the sieves thereof, of

plates secured on the corners of the sieve frames having flanges resting against the inner faces of the frames, and eyes formed in the opposite faces of the plates, and bolts passing through the eyes and connected with the frame of the shoe, substantially as de scribed.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE W. A. HANKEY.

Witnesses:

I. L. HANKEY, L. S. BACON. 

